Analytical instruments/Analytical Instrumentation MCQ Question Set 25 Sample Test,Sample questions

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Question: 
 Ideal op-amp have equal input impedance and output impedance values.

1.True

2.False

3.all of the above

4.None of the mentioned

Posted Date:-2022-04-29 18:22:43

Question: 
 Ideal op-amp have _______________ input impedance.

1.Zero

2. Low

3. High

4.Infinite

Posted Date:-2022-04-29 18:22:03

Question: 
 Schmitt trigger is a sine wave generator.

1. True

2. False

3.all of the above

4.None of the mentioned

Posted Date:-2022-04-29 18:41:07

Question: 
 Which of the following can be considered as oscillation frequency controlling element in RC phase shift oscillator?

1.Resistance

2.Capacitor

3.Both resistor and capacitor

4.None of the mentioned

Posted Date:-2022-04-29 18:18:34

Question: 
 Which of the following can be used as a comparator?

1.Zener diode

2.Diode

3.Operational amplifier

4.All of the mentioned

Posted Date:-2022-04-29 18:13:11

Question: 
 Which of the following can be used as an amplifier?

1.IC 8870

2. IC 741

3. IC 4047

4.IC 4041

Posted Date:-2022-04-29 18:28:47

Question: 
 Which of the following oscillators have higher stability at a higher frequency?

1.Wien-bridge oscillator

2.RC phase shift oscillator

3.Crystal oscillator

4.All of the mentioned

Posted Date:-2022-04-29 18:18:13

Question: 
 Which of the following represents RF?

1.Relative frequency

2.Radio frequency

3.Recursive frequency

4.Reduced frequency

Posted Date:-2022-04-29 18:20:55

Question: 
Automatic washing machine is ______

1.Open loop control system

2.Closed loop control system

3.Unpredictable

4.None of the mentioned

Posted Date:-2022-04-29 18:08:50

Question: 
Cathode ray oscilloscope uses ________

1.Wide band amplifier

2. Narrow band amplifier

3. Zero band amplifier

4. None of the mentioned

Posted Date:-2022-04-29 18:21:44

Question: 
Closed-loop system are also known as manual control system.

1.True

2.False

3.all of the above

4.None of the mentioned

Posted Date:-2022-04-29 18:05:15

Question: 
CRO can be considered as an inverse transducer.

1.True

2.False

3.all of the above

4.None of the mentioned

Posted Date:-2022-04-29 18:04:56

Question: 
Difference between levels on input that causes transition in Schmitt trigger is ____

1.Hysteresis

2.Threshold

3.Cut-off value

4.Peak value

Posted Date:-2022-04-29 18:41:28

Question: 
Electric hand drier is an example of ______

1.Open loop control system

2.Closed loop control system

3.Unpredictable

4.None of the mentioned

Posted Date:-2022-04-29 18:08:30

Question: 
For a good control system bandwidth should be ______

1.Very low

2.Ideally zero

3.Very high

4.None of the mentioned

Posted Date:-2022-04-29 18:07:44

Question: 
For excellent stability, the zener diode is kept in temperature controlled casket.

1.True

2.False

3.all of the above

4.None of the mentioned

Posted Date:-2022-04-29 18:12:31

Question: 
For instrumentation system, precision variable voltage-reference system is necessary.

1.True

2.False

3.all of the above

4.None of the mentioned

Posted Date:-2022-04-29 18:12:47

Question: 
Gain of wide band amplifiers are ________

1.Very low

2.Less than 100

3.100 to 300

4.300 to 600

Posted Date:-2022-04-29 18:22:26

Question: 
High frequency amplifier in FM telemetry have _____

1. Zero frequency

2.Infinite frequency

3.Variable frequency

4.Fixed frequency

Posted Date:-2022-04-29 18:21:18

Question: 
In a Wien-bridge oscillator for obtaining 160Hz frequency output what will be the capacitor value if resistance is selected as 1KΩ?

1.10 µF

2. 1 µF

3.1 nF

4.10 nF

Posted Date:-2022-04-29 18:16:16

Question: 
In a Wien-bridge oscillator, frequency of oscillation and capacitor value have ______

1.Direct proportionality

2.Inverse proportionality

3.Equality

4.No relation

Posted Date:-2022-04-29 18:16:39

Question: 
In RC phase shift oscillator, one R-C bridge provides ___________ phase shift.

1.300

2.600

3.900

4.1800

Posted Date:-2022-04-29 18:17:48

Question: 
Pressure can be directly measured from load cell.

1.True

2. False

3.all of the above

4.None of the mentioned

Posted Date:-2022-04-29 18:03:36

Question: 
Pulse wave and square wave are the same in all aspect.

1.True

2.False

3.all of the above

4.None of the mentioned

Posted Date:-2022-04-29 18:19:35

Question: 
Stability of output voltage is entirely depended on _________

1.Stability of transformer

2.Stability of zener diode

3.Quality of wires

4.Capacitor values

Posted Date:-2022-04-29 18:11:33

Question: 
Threshold voltage for switching in Schmitt trigger is determined by _______

1. Resistor R1

2.Resistor R2

3. Both resistors

4. None of the mentioned

Posted Date:-2022-04-29 18:42:07

Question: 
Time taken by a system to achieve stable state is _________

1.Oscillation

2.Damping

3.Speed

4.Bandwidth

Posted Date:-2022-04-29 18:08:05

Question: 
Which of the application’s filters used for?

1.Reducing ripples

2.Increasing ripples

3.Increasing phase change

4. Increasing amplitude

Posted Date:-2022-04-29 18:09:55

Question: 
Which of the following are not the standard value of Zener diodes?

1.5.1 V

2.5.6 V

3.5.8V

4.6.2V

Posted Date:-2022-04-29 18:13:30

Question: 
Which of the following are used in window comparators?

1. Op-amps and AND gates

2.OP-amps and OR gates

3.Op-amps and XOR gates

4.OP-amps and NAND gates

Posted Date:-2022-04-29 18:40:38

Question: 
Which of the following can act as a comparator?

1. Op-amp with negative feedback

2.Op-amp with positive feedback

3.Op-amp without feedback

4.None of the mentioned

Posted Date:-2022-04-29 18:39:22

Question: 
Which of the following can be a source of supply in dc power supplies?

1.Battery

2.Dry cell

3. Full wave rectifier

4.All of the mentioned

Posted Date:-2022-04-29 18:09:32

Question: 
Which of the following can be measured using a load cell?

1.Displacement

2.Stress

3.Strain

4.All of the mentioned

Posted Date:-2022-04-29 18:03:57

Question: 
Which of the following can be used to produce a square waveform?

1. Wien bridge oscillators

2.T-oscillator

3.Hartley oscillator

4.Multivibrators

Posted Date:-2022-04-29 18:19:18

Question: 
Which of the following detect the presence of a voltage between two voltages?

1. Zero crossing detector

2.Differential comparator

3.Window comparator

4.None of the mentioned

Posted Date:-2022-04-29 18:40:10

Question: 
Which of the following device is a non-linear device?

1.Resistance

2. Diode

3.Op-amp

4.Capacitor

Posted Date:-2022-04-29 18:17:27

Question: 
Which of the following device is similar to analog comparator?

1.Analog switch

2.MCB

3.Energy meter

4. Digital switch

Posted Date:-2022-04-29 18:38:57

Question: 
Which of the following generate output voltage much closer to true value?

1.True generator

2.Precision generator

3.Output generator

4.Accurate generator

Posted Date:-2022-04-29 18:10:51

Question: 
Which of the following is the application of a negative feedback system?

1.Mercury thermostat

2.Centrifugal governor

3.Audio amplifier

4.All of the mentioned

Posted Date:-2022-04-29 18:07:16

Question: 
Which of the following is the application of a positive feedback system?

1. Telemetry system

2.Automatic test system

3.Bimorph position control system

4. None of the mentioned

Posted Date:-2022-04-29 18:06:55

Question: 
Which of the following lead to instability?

1.Negative feedback

2.Positive feedback

3. Both positive and negative feedback

4.None of the mentioned

Posted Date:-2022-04-29 18:05:42

Question: 
Which of the following op-amp configurations are not possible?

1. Differential amplifier

2.Inverting amplifier

3.Non-inverting amplifier

4.All of the mentioned

Posted Date:-2022-04-29 18:38:13

Question: 
Which of the following represent a change of output voltage when load current is increased?

1. Line regulation

2.Load regulation

3.Current regulation

4.Voltage regulation

Posted Date:-2022-04-29 18:10:27

Question: 
Which of the following represent the temperature at which atmosphere moisture can saturate?

1.Bubble point

2. Dew point

3.Melting point

4.Saturation point

Posted Date:-2022-04-29 18:04:37

Question: 
Which of the following represents the LC tuned circuit?

1.Wien bridge oscillator

2. T oscillator

3. Hartley oscillator

4.All of the mentioned

Posted Date:-2022-04-29 18:18:57

Question: 
Which of the following represents the radio frequency range?

1. Less than 100 Hz

2.Less than 100 KHz

3. Less than 100MHz

4.Between 100MHz to 2000 MHz

Posted Date:-2022-04-29 18:20:32

Question: 
Which of the following signals are generated by Wien-bridge oscillators?

1.Square wave

2.Sine wave

3.Triangular wave

4.Pulse wave

Posted Date:-2022-04-29 18:13:58

Question: 
Why zener diodes are provided in dc supply?

1.For forward conduction

2.For reverse conduction

3.For reference voltage

4.For increasing amplitude

Posted Date:-2022-04-29 18:11:14

Question: 
Wide band amplifiers are most commonly ______

1.Single ended

2.Double ended

3. Unpredictable

4.None of the mentioned

Posted Date:-2022-04-29 18:28:23

Question: 
Zero crossing detector has ____________ as reference voltage.

1.+ve Vcc

2. –ve Vcc

3.Zero V

4.5V

Posted Date:-2022-04-29 18:39:44

Posted on by R4R Team

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